40347079 has 2 divisors, whose sum is σ = 40347080. Its totient is φ = 40347078.

The previous prime is 40347077. The next prime is 40347101. The reversal of 40347079 is 97074304.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40347079 - 2¹ = 40347077 is a prime.

Together with 40347077, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40347077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20173539 + 20173540.

It is an arithmetic number, because the mean of its divisors is an integer number (20173540).

Almost surely, 2^40347079 is an apocalyptic number.

40347079 is a deficient number, since it is larger than the sum of its proper divisors (1).

40347079 is an equidigital number, since it uses as much as digits as its factorization.

40347079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21168, while the sum is 34.

The square root of 40347079 is about 6351.9350594917. The cubic root of 40347079 is about 342.9815033077.

The spelling of 40347079 in words is "forty million, three hundred forty-seven thousand, seventy-nine".